3270729600domain: NAppears in sequencesSecond unsigned column of triangle A051379.at n=9A051560Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where A(n,k) = [x^n] Product_{j=0..n} (1 + (k*n+j)*x).at n=53A382347a(n) = [x^n] Product_{k=0..n} (1 + (n+k)*x).at n=8A384024